To the nearest square metre, calculate the curved surface area of the half pipe if it is 9m long? (With a radius of 2.5m)

Mathematics

1 answer:

Mice21 [21]2 years ago

4 0

Answer:

70.686 $m^{2}$

Step-by-step explanation:

A=2πrh (area of cylinder without top or bottom)

A = 2 $\pi$ (2.5)(9)

A = 141.372

divide by two for half of pipe.

A = 70.686

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